baber/WOPTO huggingface dataset:
Patent GB-1313037-A (GB)
Title: Non-woven fabric
IPC: D04H3/16
Filed: 1971-08-16
Abstract: 1313037 Parachutes MONSANTO CO 16 Aug 1971 [17 Aug 1970] 38344/71 Heading B7G [Also in Division D1] A cruciform parachute for supporting magnesium flares is made from a non-woven web (see Divisions D1-D2) of autogenously bonded continuous nylon filaments randomly orientated within the plane of the web, the web having an air permeability of 300 to 550 cu. feet/sq. foot per minute at a pressure difference of 0À5 inch of water, and a density of 0À25 to 0À46 gm. per c.c. Preferably the thickness is 1À7 to 5À3 mils. and the weight is 0À6 to 1À0 oz./sq. yd. The cruciform structure prevents oscillation, so that, when used to support a flare, ascending magnesium oxide particles are trapped by the web thus reducing its permeability and thereby slowing the descent of the flare.
Patent GB-929301-A (GB)
Title: Improvements relating to electronic switching circuits
Inventor: BIBB DOUGLAS MCKINLEY
IPC: H03K19/12
Filed: 1958-11-27
Abstract: 929,301. Transistor switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 26, 1959 [Nov. 27, 1958], No. 38352/58. Class 40 (6). A switching circuit comprises a transistor T2 connected as an emitter follower, with a clamping diode D4 connected to the emitter, and a base biasing circuit including a leak resistor R4 and a diode D5, the arrangement being such that in the absence of an input pulse, standing currents through the clamping diode and biasing circuit operate to provide a potential difference between base and emitter to maintain the transistor cut-off. A number of further emitter follower switches, for example circuit 1, may be connected to the base of T2 via diode " AND " and " OR " circuits 2, 3.
Patent GB-869178-A (GB)
Title: Improvements in or relating to apparatus for use in grinding piezo electric crystals
IPC: B24B49/00
Filed: 1959-11-12
Abstract: 869,178. Piezo-electric crystals. TELEFUNKEN G.m.b.H. Nov. 12, 1959 [Nov. 14, 1958], No. 38404/59. Class 40(8) [Also in Group XXIII] Apparatus for simultaneously grinding or polishing a plurality of dome-surfaced piezo electric crystals comprises a work carrier 4 by which the crystals are brought into contact with a grinding tool, means for producing relative rotation between it and the carrier whereby the grinding of the crystals is effected, and a plurality of electrodes 5, each positioned to pick up during grinding the piezo-electrically generated voltage of the crystal with which it is associated, means being provided for conducting such voltages separately to a frequency meter socket 14. Disc crystals are inserted between the spring-pressed electrodes 5 and an electrically conductive bowlshaped lap and rotating the carrier 4 by an extension 3 of a shaft 2. The voltages generated during grinding by individual crystals are conducted to insulated slip-rings 9 on a block 8 whence they may be separately selected for frequency measurement by a brush 10 movable across the rings by a worm-gear 11 operated by a knob 12, a recessed bar 13 serving to locate the brush opposite the selected slip-ring. Adjustable screws may be provided at the ends of the contact of rings to enable the pressure on each electrode to be varied. As the carrier 4 is electrically-conductive, the electrode and crystal-carrying recesses are provided with insulating bushings 7. The surfaces of the electrodes in contact with the crystal discs are preferably dome-shaped with a flatter curvature than that of the discs so that the edges of the discs contact the electrodes. To reduce capacity effects earthed electrostatic screens 19 are provided between adjacent slip-rings. Figs. 2 and 3 (not shown) relate to alternative methods of picking up the voltages generated by the crystal discs during grinding. In Fig. 2 a similar slip-ring assembly is employed but separate pick-up brushes are provided for each ring, each brush being connected to a separate contact on a selector switch connected to a frequency meter. In Fig. 3 the leads from the crystal-contacting electrodes are taken to the segments of a commutator mounted for rotation with the shaft 2 and a spring-pressed brush picks up successively the voltages of each segment and conveys them to a synchronously rotated distributer switch.
Patent GB-1271965-A (GB)
Title: Improvements in and relating to cartons
Inventor: ROBERTS JOHN ANTHONY DAVID
IPC: B65D5/66
Filed: 1969-07-31
Abstract: 1,271,965. Cartons. DAVIDSON RADCLIFFE GROUP Ltd. 28 July, 1970 [31 July, 1969], No. 38500/69. Heading B8P. A carton is held erect by means of two spaced tongue and slot connections at each corner. As shown, each end of the front and back panels 1, 3 of a carton blank is provided with a flap 6 having a downwardly extending tongue 8 and a laterally projecting tongue 6a which are adapted to engage in an angularly disposed slit 9 and a vertical slit 10 respectively in the adjacent side wall 5. The slit 10 is extended into the adjacent ducts flap 11 and is adapted to receive a dovetail extension 6b of the tongue 6a.
Patent GB-1132092-A (GB)
Title: Heat exchange elements
Inventor: RIGG SHEPHERD
IPC: G21C3/336
Filed: 1965-09-09
Abstract: 1,132,092. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 23 Aug., 1966 [9 Sept., 1965], No. 38615/65. Heading G6C. In a fuel element assembly comprising fuel rods clustered in spaced array, each fuel rod has a heat transfer surface so shaped that the space between it and the surrounding rods forms a channel of substantially uniform width around the rod through which flows a heat exchange medium, and some at least of the rods have locating members of aerofoil shape attached to them at intervals along their length, these members abutting adjacent rods to provide for location of the rods against lateral displacement. Each fuel rod 10 may have a stainless steel sheath 21 with a plain inner wall 22 defining a bore of circular cross-section housing ceramic nuclear fuel 23 and a substantially plain outer wall 24 of generally hexagonal form in cross-section serving as a heat transfer surface. The sides of each wall 24 are of plain, i.e. unfinned, form. The fuel rods 10 are housed in a generally hexagonal sleeve, being supported at their upper ends from a top support plate and located at their lower ends by a bottom end plate. The plates have apertures for coolant flowing upwardly over the rods. Some of the fuel rods have locating members 28 of aerofoil shape attached to their sheaths 21 and abutting adjacent fuel rods. In one arrangement, some fuel rods do not have locating members while the remaining rods have three equispaced members either at one level or at another, closely spaced level, the members at one level being displaced by 60 degrees relative to those at the other level. The assembly may be used in a fast reactor core cooled by aqueous coolant at supercritical pressure and the fuel, structural material and coolant volume fractions can be adjusted to meet the requirements of a particular core by suitably altering the fuel rod pitch, the basic thickness of the fuel rod sheaths, or the longitudinally extending grooves 26 provided at the comers of the hexagonal sheath walls either in size, shape or number.
Patent GB-1428390-A (GB)
Title: Thiazolidinones
IPC: C08K5/47
Filed: 1972-08-18
Abstract: 1428390 Thiazolidinones IMPERIAL CHEMICAL INDUSTRIES Ltd 17 Aug 1973 [18 Aug 1972] 38620/72 Heading C2C Novel thiazolidinones of formula where R is optionally substituted hydrocarbyl and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are independently H or optionally substituted hydrocarbyl or R<SP>1</SP> and R<SP>2</SP> may complete a ring are prepared by reacting with a sulphenyl halide RS Hal. The products are used to inhibit premature vulcanization.
Patent GB-910387-A (GB)
Title: Improvements in or relating to smokers' ash trays
IPC: A24F19/00
Filed: 1958-12-01
Abstract: 910,387. Cigarette rests. HALLIWELL, T. Feb. 29, 1960 [Dec. 1, 1958], No. 38621/58. Class 130. A circular ash-tray has two diametrically opposed cigarette rests, each comprising walls 6, 7 with sloping tops, preferably of 35 to 40 degrees inclination, and having rows of prongs 9 spaced apart by less than a cigarette diameter and allowing free access of air to a burning cigarette placed thereon. The Provisional Specification describes rests comprising a pair of rods, or a trough the bottom of which has a slot or a series of holes.
Patent GB-1084608-A (GB)
Title: Triazolines and their production
IPC: C07D249/16
Filed: 1965-11-01
Abstract: Novel compounds of the Formula I, wherein R represents a C1- 5 alkyl, aryl or C7- 16 aralkyl group and a double bond or a condensed benzene ring with or without one or more substituents can be present between the 5- and 6-positions, are prepared by reacting a norbornenyl compound of the Formula II with an azidoformate of the formula ROOC.N3. <FORM:1084608/C2/1> <FORM:1084608/C2/2>
Patent GB-1413820-A (GB)
Title: Chucks for supporting containers
IPC: B29C53/00
Filed: 1972-12-15
Abstract: 1413820 Gripper OWENS-ILLINOIS Inc 15 Dec 1972 [20 Dec 1971] 38973/74 Divided out of 1413816 Heading B8H A gripper in a plant for coating glass bottles (see Division B5), comprises an axially movable rod 36 with a hub 114 at one end, a plurality of rock arms 78 spaced about the hub, links 99 between the arms and the hub, gripper elements 49 mounted on the arms and adapted to engage a bottle B around its rim, and a cam-and-spring mechanism 31, 42 to move the rod axially and cause the gripper to open and close. The elements 49 are easily replaceable by means of the pin-and-slot arrangement 79, 80.
Patent GB-1326945-A (GB)
Title: Hermetically sealed containers
IPC: B65D30/08
Filed: 1970-08-13
Abstract: 1326945 Hermetically sealed bags SEISAN NIPPONSHA KK 13 Aug 1970 [14 Aug 1969] 39085/70 Heading B8K [Also in Division E2] A hermetically sealed pouch or wallet 1 is made of air impervious laminated material and has an airtight sealing member 2 integral with or bonded to the inner laminate layer 4 at the open end of the pouch. The sealing member 2 comprises a male member 2a and a female member 2b the depth K of member 2b being longer than the length J of member 2a to facilitate engagement. The surfaces B, B<SP>1</SP> of member 2a and E, E<SP>1</SP> of member 2b are urged together by the resilience of member 2b since the maximum widths D and F of members 2a and 2b are equal. The width C of the rib portion A of member 2a is larger than the width G of the opening of member 2b to enhance air tightness. To facilitate tearing opening of the pouch on a line 9, two opposed pairs of ribs 5, 5<SP>1</SP> are provided. The pouch may be formed of a laminate of Cellophane (Registered Trade Mark) or polyethylene with aluminium foil or paper sheet. The sealing member 2 may be made of polyethylene.
Patent GB-356071-A (GB)
Title: Improvements in and relating to heaters suitable for gaseous fluids
IPC: F24H3/08
Filed: 1930-12-30
Abstract: 356,071. Heating air and gases. FOLLIET, A. and SAINDERICHIN, N., 2, Rue Chernoviz, Paris. Dec. 30, 1930, No. 39200. Convention date, Dec. 30, 1929. [Class 64 (i).] A gas heater in which the gas traverses a number of tubes arranged in parallel planes is heated by hot gases issuing from elongated slots which direct the heating gases in thin sheets, the planes of which alternate with and are parallel to the vertical planes of the bent tubes, so that the thin sheets of gas heat the tubes by radiation. The gases to be heated flow through a series of tubes 4 arranged in two sets in parallel from inlet 2 to outlet 3, the tubes being contained within successive heating chambers 25, 23, 21 and connected therein by pipes 28, 29, 30. Headers 16 transfer the gases between lateral tubes, the headers being secured in any one set by a tube plate 17. Hot gases from a furnace 6 mixed with secondary air from duct 9 in chamber 7, pass through the nozzle-like slots 11 into the heating chamber 21. Further secondary air from valve 12 enters the chamber through saw-cuts 14 in refractory tubes 13 ; bars 15 assist in distributing the gases. The latter pass upwards in chambers 21, 25, downwards in 23 and chamber 19 to outlet 27 leading to the chimney. One of the branches of the tubes 4 may be curved in a vertical plane.
Patent GB-1487207-A (GB)
Title: Paging receivers
IPC: H04L27/18
Filed: 1974-09-09
Abstract: 1487207 Timing control systems PYE (ELECTRONIC PRODUCTS) Ltd 9 Sept 1974 39305/74 Heading H3A [Also in Division G4] A timing control system suitable for nominally setting the frequency of a locally generated signal at 36 to that of a received signal during the pilot tone period preceding the message in a DPSK paging receiver (see also Division G4) comprises an oscillator 32, a frequency divider 34, a phase comparator 27 including an in-lock detector 26 and a reset logic 31 (Figs. 6, 7, not shown) responsive to the divider output and the received signal for varying the divisor of 34 in dependence of the detected phase difference. The divider 34 may consist of a number of series connected bi-stable-stages (Fig. 7, not shown), at least some of which are set or reset by the phase comparator output to advance or retard the phase of the divider output by an integral number of the pulse period of oscillator 32. The control of the divider is inhibited when a measuring circuit 41 detects that the phase difference is within limits for a pre-set time.
Patent GB-1516768-A (GB)
Title: Apparatus and method for preparing microscope slides
IPC: G01N1/31
Filed: 1976-09-22
Abstract: 1516768 Preparing microscope slides R D WHITE and J F GIBSON 22 Sept 1976 39365/76 Heading G2J A plurality of slides bearing biological or medical specimens are held on a turn-table. While the table is rotating, preparation solutions (staining and buffering solutions) are sprayed on to the slides. Then the slides are dried by the air currents generated by a substantially greater rate of rotation of the turn-table
Patent GB-937454-A (GB)
Title: Improvements relating to electronic apparatus for indicating variations in the lengths of time intervals between pulses
Inventor: NOBLE PETER JOHN WELLESLEY
IPC: G04F10/00
Filed: 1960-11-16
Abstract: 937,454. Phase detectors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 29, 1961 [Nov. 16, 1960], No. 39367/60. Drawings to Specification. Class 40 (5). The variation of the time intervals between successive 2<SP>n</SP>th pulse of a pulse series is measured by applying the pulses in succession to n frequency division-by-two bi-stable circuits with outputs differentiated (and only pulses of one polarity selected) and the final pulses applied to a bi-stable output circuit whose mark/space ratio (measured as the average D.C. output of one state) indicates the ratio of the time intervals between successive 2<SP>n</SP>th pulses of the pulse train. A reference pulse train may precede groups of the pulses, especially if the groups do not contain precisely 2<SP>n</SP> pulses, and may be added into one of the inputs of the pulses to each side of the frequency dividers and output circuit, e.g. through cathode followers and an adding circuit, so that each of all the bi-stable circuits is switched to a predetermined state at the commencement of the group. The system may be in part duplicated so that variations in the time interval between different 2<SP>n</SP>th pulses of the group are measured, by selecting a differentiated output from another side of a bistable frequency divider. To this end a multivibrator may alternately switch the two outputs to a recording pen. The outputs from each side. respectively, of the final bi-stable circuit may be differentially combined and amplified by a differential amplifier which at the same time averages its two inputs to produce a D.C. output indicating in magnitude and polarity the ratio of the time intervals between successive 2<SP>n</SP>th pulses and whether this ratio is greater or less than unity. Specification 937,453 is referred to.
Patent GB-1532298-A (GB)
Title: Safety circuit for the ignition system of an internal combustion engine and an ignition system incorporating the safety circuit
IPC: F02P3/05
Filed: 1976-09-23
Abstract: 1532298 Ignition system ROBERT BOSCH GmbH 23 Sept 1976 [25 Sept 1975] 39422/76 Heading F1B In a safety circuit for an ignition system of an internal combustion engine which is connectible by means of an operating switch 3 to a direct current source 2 and which contains an ignition coil 7 connected to a control switch 8 to supply an ignition voltage surge for a spark-plug 10 as a result of the switching of the control circuit to a non- conductive condition, a safety circuit branch 15, connected in parallel with the primary winding 6 of the ignition coil, includes an additional electronic switch 16 and for switching the additional switch 16 to its conductive state a current flow to the additional switch is used which is produced by the stored ignition energy in the coil 7 and whose supply to the additional switch is made dependent upon disconnection of the direct current source 2 from the ignition system by the operating switch 3 when the control switch 8 is closed. The additional switch 16 may comprise a thyristor. The control switch 8 shown may be replaced by a transistor controlled by a mechanically operated switch or controlled by an alternating current signal generator.
Patent GB-882685-A (GB)
Title: Device for treating a gas with a liquid
IPC: B01D47/02
Filed: 1958-12-09
Abstract: 882,685. Contacting a gas with a liquid. AMERICAN AIR FILTER CO. Ltd. Dec. 9, 1958 [Dec. 16, 1957], No. 39623/58. Class 55 (2). In a device wherein a gas is treated with a liquid the gas stream entering the device is divided into two streams, one of which passes through apertures 15 (Fig. 1), in the bottom of a contact chamber 2 directly into the contact chamber while the other passes through holes 16 in a conduit 12 dipping at its lower end into a body of liquid in a sump 9 and opening at its upper end into the contact chamber 2, the stream of gas entering the conduit 12 entrains liquid from the sump in an amount sufficient for treatment of the whole gas stream which passes upwardly through filter pads 3 and 4 to a gas outlet 6. The contact chamber 2 is surrounded by an outer cylinder 1 and forms therewith an annular passage 8 into which liquid can drain from the filter pads 3 and 4 to be returned by a pipe 11 to the sump 9. The amount of liquid entrained by the stream of gas entering the conduit 12 may be controlled by metering the amount of liquid entering the conduit from the sump by closing the bottom of the conduit with an orificed plate or surrounding the lower end of the conduit with a chamber to which liquid is admitted through an orifice. In further modifications a chamber surrounding the lower end of the conduit 12 is supplied with liquid through an end of a flexible tube carried by a float or has an orifice for admission of liquid controlled by a valve member actuated by a bellows responsive to the temperature of the liquid in the sump. The conduit 12 may consist of an upper tube 18 (Fig. 5), and a lower concentric tube 19 of smaller diameter attached by straps 17 to the upper tube. The liquid in the sump may be oil or water.
Patent GB-1004225-A (GB)
Title: Apparatus for processing with a liquid
IPC: H05K3/00
Filed: 1963-10-08
Abstract: <PICT:1004225/C6-C7/1> <PICT:1004225/C6-C7/2> Processing apparatus includes a substantially flat and horizontal platform disposed in a path along which a workpiece with a surface or surfaces to be processed is moved, an upwardly opening channel around the platform periphery and means to supply processing liquid to the channel for upward flow therein to cover the platform and provide a layer of liquid with an upper surface above the platform for contact with the surface to be processed.  A tank 10 has side walls 11, 12, 13, 14 and a bottom wall 16 from which extend four vertical walls 21 which support the horizontal rectangular platform 20. The platform may alternatively be circular or oval.  The walls 21 form a channel 25 around the platform with walls 23, 24 extending upwardly from a horizontal partition 17 in the tank, the walls 23 transverse to the direction along which the articles travel being shorter and extending only just above the platform.  A pump 27 driven by an electric motor 28 is arranged in an opening in the partition to pump liquid from the upper section of the tank to the lower section of the tank so that liquid flows through the channel 25 to overflow over the walls 23. Ultrasonic transducers 30 are secured to the lower side of the platform 30 so that the liquid flowing over the platform forms an ultrasonically energized free standing wave 35.  The articles 40 to be processed may be printed circuit boards having connections to be cleaned, fluxed and soldered and the articles may contact the wave with their lower surfaces or may be immersed therein. The articles may be flat plate, a travelling web, or cylindrical articles, the processing liquid may be molten metal, suspensions of solids in a liquid vehicle or viscous substances and the process carried out may be coating, pickling, tanning, washing or burnishing.
Patent GB-1087500-A (GB)
Title: Improvements in or relating to clasps
Inventor: KING ROGER MILNER
IPC: A44C5/20
Filed: 1965-09-20
Abstract: 1,087,500. Clasps. ROGER MILNER KING Ltd. Sept. 20, 1965, No. 39949/65. Heading E2A. A clasp comprises two similar portions 1, 2 each portion having a tongue 5 engaging a ,groove 6 in the other portion and retained by a guard 3 pivoted to one end of the portion 2 and having studs 12, 14, projecting from the inner surfaces of the side arms, engaging indentations 13, 15 in the sides of portion 1. A further stud 14 engages an indentation or portion 2 when the guard is opened. In modifications, the two clasp portions are not identically shaped. One part may comprise a flat plate with the tongue projecting therefrom.
Patent GB-1067799-A (GB)
Title: Proportional flow meter
IPC: G01F1/22
Filed: 1965-09-22
Abstract: 1,067,799. Measuring fluid flow. AGA A.B. Sept.22, 1965 [Dec.10, 1964; Aug. 11, 1965], No.40348/65. Heading G1R. In a proportional flow meter media to be mixed is fed to an annular or sector shaped chamber 3 through inlets 13, 14 arranged one on each side of a movable vane 9, the vane 9 adjusts itself to equal pressures on each side and the media from the chamber 3 is fed through slots 10, 11 to a mixing chamber beneath the bars supporting the vane 9 and exits through a duct 15.
Patent GB-1018754-A (GB)
Title: Information processing systems
IPC: G06F11/08
Filed: 1962-10-25
Abstract: 1,018,754. Checking computer stores. WESTERN ELECTRIC CO. Inc. Oct. 25, 1962 [Nov. 22, 1961], No. 40361/62. Headings G4A and G4C. A data processing system includes a memory in which data is stored together with parity check bits computed from the stored data and from the corresponding memory address. A check on both the data itself and the address from which it is read out is thus provided. Fig. 1 shows a 2 x 2 matrix memory 50 which may consist of cores, cryogenic devices &c. and has four storage addresses addressed by two binary bits Z 0  and Z 1 , each of the four addresses being capable of storing a 2-bit binary word X 0 , X 1 . To provide a single error correction facility, three parity bits Y 0 , Y 1 , Y 2  are necessary, these being computed in a network 51 from the data entered X 0 , X 1  and the memory address Z 0 , Z 1 . In operation, to read out a stored word, an address source 55 supplies the address Z 0 , Z 1  to the memory 50 to read out the five X and Y digits stored in the selected address to an error detecting and correcting circuit 53 which is supplied also with the address bits Z 0 , Z 1 . The circuit 53 computes further bits V 0 , V 1 , V 2  to indicate correctness or the source of an error in the seven X, Y, Z bits which are then corrected automatically. To provide in addition for double error detection, a further parity bit Y 3  is necessary and if a double error is detected an output from the circuit 53 causes the memory to be re-addressed. The memory is also readdressed if any error is detected in the address bits Z 0 , Z 1  in any of the above cases. In a modification (Fig. 2, not shown), single errors only are detected.